<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=2">
<meta name="theme-color" content="#222">
<meta name="generator" content="Hexo 4.2.1">
  <link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png">
  <link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png">
  <link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png">
  <link rel="mask-icon" href="/images/logo.svg" color="#222">

<link rel="stylesheet" href="/css/main.css">


<link rel="stylesheet" href="/lib/font-awesome/css/font-awesome.min.css">

<script id="hexo-configurations">
    var NexT = window.NexT || {};
    var CONFIG = {"hostname":"yoursite.com","root":"/","scheme":"Gemini","version":"7.8.0","exturl":false,"sidebar":{"position":"left","display":"post","padding":18,"offset":12,"onmobile":false},"copycode":{"enable":false,"show_result":false,"style":null},"back2top":{"enable":true,"sidebar":false,"scrollpercent":false},"bookmark":{"enable":false,"color":"#222","save":"auto"},"fancybox":false,"mediumzoom":false,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"algolia":{"hits":{"per_page":10},"labels":{"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}},"localsearch":{"enable":false,"trigger":"auto","top_n_per_article":1,"unescape":false,"preload":false},"motion":{"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}}};
  </script>

  <meta name="description" content="Linux系统作业控制：Job：前台作业（foregroud）：通过终端启动，且启动后会一直占据终端； 后台作业（background）：可以通过终端启动，但启动后即转入后台运行（释放终端）；  命令行中启动的命令，如果不支持运行在后台的话，会一直占据前台；如何让作业运行于后台* 运行中的作业   * Ctrl+Z   * 注意：送往后台后，作业转为静止态； * 尚未启动的作业   * COMMA">
<meta property="og:type" content="article">
<meta property="og:title" content="16.进程和作业管理">
<meta property="og:url" content="http://yoursite.com/2020/06/15/16-%E8%BF%9B%E7%A8%8B%E5%92%8C%E4%BD%9C%E4%B8%9A%E7%AE%A1%E7%90%86/index.html">
<meta property="og:site_name" content="Lcxiao&#39;s blog">
<meta property="og:description" content="Linux系统作业控制：Job：前台作业（foregroud）：通过终端启动，且启动后会一直占据终端； 后台作业（background）：可以通过终端启动，但启动后即转入后台运行（释放终端）；  命令行中启动的命令，如果不支持运行在后台的话，会一直占据前台；如何让作业运行于后台* 运行中的作业   * Ctrl+Z   * 注意：送往后台后，作业转为静止态； * 尚未启动的作业   * COMMA">
<meta property="og:locale" content="zh_CN">
<meta property="article:published_time" content="2020-06-15T05:09:30.000Z">
<meta property="article:modified_time" content="2020-06-15T13:09:47.164Z">
<meta property="article:author" content="lcxiao">
<meta name="twitter:card" content="summary">

<link rel="canonical" href="http://yoursite.com/2020/06/15/16-%E8%BF%9B%E7%A8%8B%E5%92%8C%E4%BD%9C%E4%B8%9A%E7%AE%A1%E7%90%86/">


<script id="page-configurations">
  // https://hexo.io/docs/variables.html
  CONFIG.page = {
    sidebar: "",
    isHome : false,
    isPost : true,
    lang   : 'zh-CN'
  };
</script>

  <title>16.进程和作业管理 | Lcxiao's blog</title>
  






  <noscript>
  <style>
  .use-motion .brand,
  .use-motion .menu-item,
  .sidebar-inner,
  .use-motion .post-block,
  .use-motion .pagination,
  .use-motion .comments,
  .use-motion .post-header,
  .use-motion .post-body,
  .use-motion .collection-header { opacity: initial; }

  .use-motion .site-title,
  .use-motion .site-subtitle {
    opacity: initial;
    top: initial;
  }

  .use-motion .logo-line-before i { left: initial; }
  .use-motion .logo-line-after i { right: initial; }
  </style>
</noscript>

<link rel="alternate" href="/atom.xml" title="Lcxiao's blog" type="application/atom+xml">
</head>

<body itemscope itemtype="http://schema.org/WebPage">
  <div class="container use-motion">
    <div class="headband"></div>

    <header class="header" itemscope itemtype="http://schema.org/WPHeader">
      <div class="header-inner"><div class="site-brand-container">
  <div class="site-nav-toggle">
    <div class="toggle" aria-label="切换导航栏">
      <span class="toggle-line toggle-line-first"></span>
      <span class="toggle-line toggle-line-middle"></span>
      <span class="toggle-line toggle-line-last"></span>
    </div>
  </div>

  <div class="site-meta">

    <a href="/" class="brand" rel="start">
      <span class="logo-line-before"><i></i></span>
      <h1 class="site-title">Lcxiao's blog</h1>
      <span class="logo-line-after"><i></i></span>
    </a>
  </div>

  <div class="site-nav-right">
    <div class="toggle popup-trigger">
    </div>
  </div>
</div>




<nav class="site-nav">
  <ul id="menu" class="menu">
        <li class="menu-item menu-item-home">

    <a href="/" rel="section"><i class="fa fa-fw fa-home"></i>首页</a>

  </li>
        <li class="menu-item menu-item-about">

    <a href="/about/" rel="section"><i class="fa fa-fw fa-user"></i>关于</a>

  </li>
        <li class="menu-item menu-item-tags">

    <a href="/tags/" rel="section"><i class="fa fa-fw fa-tags"></i>标签</a>

  </li>
        <li class="menu-item menu-item-categories">

    <a href="/categories/" rel="section"><i class="fa fa-fw fa-th"></i>分类</a>

  </li>
        <li class="menu-item menu-item-archives">

    <a href="/archives/" rel="section"><i class="fa fa-fw fa-archive"></i>归档</a>

  </li>
        <li class="menu-item menu-item-lifestyle">

    <a href="/lifestyle/" rel="section"><i class="fa fa-fw fa-lifestyle"></i>LifeStyle</a>

  </li>
  </ul>
</nav>




</div>
    </header>

    
  <div class="back-to-top">
    <i class="fa fa-arrow-up"></i>
    <span>0%</span>
  </div>


    <main class="main">
      <div class="main-inner">
        <div class="content-wrap">
          

          <div class="content post posts-expand">
            

    
  
  
  <article itemscope itemtype="http://schema.org/Article" class="post-block" lang="zh-CN">
    <link itemprop="mainEntityOfPage" href="http://yoursite.com/2020/06/15/16-%E8%BF%9B%E7%A8%8B%E5%92%8C%E4%BD%9C%E4%B8%9A%E7%AE%A1%E7%90%86/">

    <span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
      <meta itemprop="image" content="/images/avatar.gif">
      <meta itemprop="name" content="lcxiao">
      <meta itemprop="description" content="">
    </span>

    <span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
      <meta itemprop="name" content="Lcxiao's blog">
    </span>
      <header class="post-header">
        <h1 class="post-title" itemprop="name headline">
          16.进程和作业管理
        </h1>

        <div class="post-meta">
            <span class="post-meta-item">
              <span class="post-meta-item-icon">
                <i class="fa fa-calendar-o"></i>
              </span>
              <span class="post-meta-item-text">发表于</span>
              

              <time title="创建时间：2020-06-15 13:09:30 / 修改时间：21:09:47" itemprop="dateCreated datePublished" datetime="2020-06-15T13:09:30+08:00">2020-06-15</time>
            </span>

          

        </div>
      </header>

    
    
    
    <div class="post-body" itemprop="articleBody">

      
        <h1 id="Linux系统作业控制："><a href="#Linux系统作业控制：" class="headerlink" title="Linux系统作业控制："></a>Linux系统作业控制：</h1><h2 id="Job："><a href="#Job：" class="headerlink" title="Job："></a>Job：</h2><pre><code>前台作业（foregroud）：通过终端启动，且启动后会一直占据终端；
后台作业（background）：可以通过终端启动，但启动后即转入后台运行（释放终端）；

命令行中启动的命令，如果不支持运行在后台的话，会一直占据前台；</code></pre><h3 id="如何让作业运行于后台"><a href="#如何让作业运行于后台" class="headerlink" title="如何让作业运行于后台"></a>如何让作业运行于后台</h3><pre><code>* 运行中的作业
  * Ctrl+Z
  * 注意：送往后台后，作业转为静止态；
* 尚未启动的作业
  * COMMAAD &amp;
注意：此类作业虽然被送往后台，单其依然与终端相关；如果希望把送网后台的作业剥离与终端的关系：
    nohup command &amp;</code></pre><h3 id="可实现作业控制的常用命令"><a href="#可实现作业控制的常用命令" class="headerlink" title="可实现作业控制的常用命令"></a>可实现作业控制的常用命令</h3><p>fg  把指定作业调回前台；注意，直接加上jobs显示的id即可，后面的+号表示默认fg转入的作业，即优先级；<br>bg  让送往后台的作业在后台继续运行；<br>kill    终止指定的作业；注意一定要加“%”号；</p>
<h2 id="调整进程优先级"><a href="#调整进程优先级" class="headerlink" title="调整进程优先级"></a>调整进程优先级</h2><p>可通过nice值调整的优先级范围：100–139<br>    分别对应于：-20 19<br>进程启动时，其nice值默认为0，其优先级是120；</p>
<h3 id="nice命令"><a href="#nice命令" class="headerlink" title="nice命令:"></a>nice命令:</h3><p>以指定的nice值启动并运行命令<br>nice [option] [command [ARGU]…]<br>nice -n NICE<br>注意：仅管理员可以调低nice值；</p>
<h3 id="renice命令："><a href="#renice命令：" class="headerlink" title="renice命令："></a>renice命令：</h3><pre><code>renice [-n] NICE PID...</code></pre><p>查看NICE值和优先级：<br>    ps axo pid,ni,priority,comm</p>
<h3 id="未涉及的命令："><a href="#未涉及的命令：" class="headerlink" title="未涉及的命令："></a>未涉及的命令：</h3><p>sar、tsar、iostat、lftop、nethog…</p>
<h3 id="htop、dstat、top、ps命令的使用重点掌握；"><a href="#htop、dstat、top、ps命令的使用重点掌握；" class="headerlink" title="htop、dstat、top、ps命令的使用重点掌握；"></a>htop、dstat、top、ps命令的使用重点掌握；</h3>
    </div>

    
    
    
        

  <div class="followme">
    <p>欢迎关注我的其它发布渠道</p>

    <div class="social-list">

        <div class="social-item">
          <a target="_blank" class="social-link" href="/atom.xml">
            <span class="icon">
              <i class="fa fa-rss"></i>
            </span>

            <span class="label">RSS</span>
          </a>
        </div>
    </div>
  </div>


      <footer class="post-footer">

        


        
    <div class="post-nav">
      <div class="post-nav-item">
    <a href="/2020/06/15/15-Linux%E8%BF%9B%E7%A8%8B%E7%AE%A1%E7%90%86%E5%91%BD%E4%BB%A4/" rel="prev" title="15.Linux进程管理命令">
      <i class="fa fa-chevron-left"></i> 15.Linux进程管理命令
    </a></div>
      <div class="post-nav-item">
    <a href="/2020/06/15/17-%E7%BD%91%E7%BB%9C%E5%AE%A2%E6%88%B7%E7%AB%AF%E5%B7%A5%E5%85%B7/" rel="next" title="17.网络客户端工具">
      17.网络客户端工具 <i class="fa fa-chevron-right"></i>
    </a></div>
    </div>
      </footer>
    
  </article>
  
  
  



          </div>
          

<script>
  window.addEventListener('tabs:register', () => {
    let { activeClass } = CONFIG.comments;
    if (CONFIG.comments.storage) {
      activeClass = localStorage.getItem('comments_active') || activeClass;
    }
    if (activeClass) {
      let activeTab = document.querySelector(`a[href="#comment-${activeClass}"]`);
      if (activeTab) {
        activeTab.click();
      }
    }
  });
  if (CONFIG.comments.storage) {
    window.addEventListener('tabs:click', event => {
      if (!event.target.matches('.tabs-comment .tab-content .tab-pane')) return;
      let commentClass = event.target.classList[1];
      localStorage.setItem('comments_active', commentClass);
    });
  }
</script>

        </div>
          
  
  <div class="toggle sidebar-toggle">
    <span class="toggle-line toggle-line-first"></span>
    <span class="toggle-line toggle-line-middle"></span>
    <span class="toggle-line toggle-line-last"></span>
  </div>

  <aside class="sidebar">
    <div class="sidebar-inner">

      <ul class="sidebar-nav motion-element">
        <li class="sidebar-nav-toc">
          文章目录
        </li>
        <li class="sidebar-nav-overview">
          站点概览
        </li>
      </ul>

      <!--noindex-->
      <div class="post-toc-wrap sidebar-panel">
          <div class="post-toc motion-element"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#Linux系统作业控制："><span class="nav-number">1.</span> <span class="nav-text">Linux系统作业控制：</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#Job："><span class="nav-number">1.1.</span> <span class="nav-text">Job：</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#如何让作业运行于后台"><span class="nav-number">1.1.1.</span> <span class="nav-text">如何让作业运行于后台</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#可实现作业控制的常用命令"><span class="nav-number">1.1.2.</span> <span class="nav-text">可实现作业控制的常用命令</span></a></li></ol></li><li class="nav-item nav-level-2"><a class="nav-link" href="#调整进程优先级"><span class="nav-number">1.2.</span> <span class="nav-text">调整进程优先级</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#nice命令"><span class="nav-number">1.2.1.</span> <span class="nav-text">nice命令:</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#renice命令："><span class="nav-number">1.2.2.</span> <span class="nav-text">renice命令：</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#未涉及的命令："><span class="nav-number">1.2.3.</span> <span class="nav-text">未涉及的命令：</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#htop、dstat、top、ps命令的使用重点掌握；"><span class="nav-number">1.2.4.</span> <span class="nav-text">htop、dstat、top、ps命令的使用重点掌握；</span></a></li></ol></li></ol></li></ol></div>
      </div>
      <!--/noindex-->

      <div class="site-overview-wrap sidebar-panel">
        <div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person">
  <p class="site-author-name" itemprop="name">lcxiao</p>
  <div class="site-description" itemprop="description"></div>
</div>
<div class="site-state-wrap motion-element">
  <nav class="site-state">
      <div class="site-state-item site-state-posts">
          <a href="/archives/">
        
          <span class="site-state-item-count">38</span>
          <span class="site-state-item-name">日志</span>
        </a>
      </div>
      <div class="site-state-item site-state-categories">
        <span class="site-state-item-count">1</span>
        <span class="site-state-item-name">分类</span>
      </div>
      <div class="site-state-item site-state-tags">
            <a href="/tags/">
          
        <span class="site-state-item-count">9</span>
        <span class="site-state-item-name">标签</span></a>
      </div>
  </nav>
</div>


  <div class="links-of-blogroll motion-element">
    <div class="links-of-blogroll-title">
      <i class="fa fa-fw fa-link"></i>
      Links
    </div>
    <ul class="links-of-blogroll-list">
        <li class="links-of-blogroll-item">
          <a href="http://163.com/" title="http:&#x2F;&#x2F;163.com" rel="noopener" target="_blank">163</a>
        </li>
        <li class="links-of-blogroll-item">
          <a href="http://baidu.com/" title="http:&#x2F;&#x2F;baidu.com" rel="noopener" target="_blank">baidu</a>
        </li>
        <li class="links-of-blogroll-item">
          <a href="/dalipan.com" title="dalipan.com">dalipan</a>
        </li>
        <li class="links-of-blogroll-item">
          <a href="https://google.com/" title="https:&#x2F;&#x2F;google.com" rel="noopener" target="_blank">Google</a>
        </li>
    </ul>
  </div>

      </div>

    </div>
  </aside>
  <div id="sidebar-dimmer"></div>


      </div>
    </main>

    <footer class="footer">
      <div class="footer-inner">
        

        

<div class="copyright">
  
  &copy; 
  <span itemprop="copyrightYear">2020</span>
  <span class="with-love">
    <i class="fa fa-user"></i>
  </span>
  <span class="author" itemprop="copyrightHolder">lcxiao</span>
</div>

        








      </div>
    </footer>
  </div>

  
  <script src="/lib/anime.min.js"></script>
  <script src="/lib/velocity/velocity.min.js"></script>
  <script src="/lib/velocity/velocity.ui.min.js"></script>

<script src="/js/utils.js"></script>

<script src="/js/motion.js"></script>


<script src="/js/schemes/pisces.js"></script>


<script src="/js/next-boot.js"></script>




  















  

  

<script src="/live2dw/lib/L2Dwidget.min.js?094cbace49a39548bed64abff5988b05"></script><script>L2Dwidget.init({"log":false,"pluginJsPath":"lib/","pluginModelPath":"assets/","pluginRootPath":"live2dw/","tagMode":false});</script></body>
</html>
